package facade;

public class SimpleFacade {
    private SubSystemA systemA = new SubSystemA();
    private SubSystemB systemB = new SubSystemB();

    public void doA(){
        this.systemA.done();
    }

    public void doB(){
        this.systemB.done();
    }

    public void doAB(){
        this.systemA.done();
        this.systemB.done();
    }
}
